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NSN 5306-01-338-6794

Close Tolerance Hex Head Bolt

About this product

Aluminum coating identified by red dye on thread end.

Manufacturer part number BACB30NR4K11 for national stock number 5306013386794.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-338-6794.

  • MPN or Model

    BACB30NR4K11

  • Schedule B
    8109.90.0000 (Zirconium and articles thereof nesoi)
  • NMF (National Motor Freight)
    093486 - Bolts, Nuts Or Screws, NOI (sub 3)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.389 inches
  • Fastener Length
    Between 1.062 inches and 1.092 inches
  • Head Style
    Dished hexagon
  • Head Height
    Between 0.125 inches and 0.140 inches
  • Width Between Flats
    Between 0.430 inches and 0.439 inches
  • Grip Diameter
    Between 0.2485 inches and 0.2495 inches
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 0.678 inches and 0.698 inches
  • Thready Qty Per Inch (tpi)
    28
  • Surface Finish
    63.0 microinches bearing surface of head32.0 microinches grip32.0 microinches threads
  • Material
    Titanium alloy uns r56400
  • Material Specification
    Ams4928 assn standard single material response or ams4967 assn standard single material response
  • Surface Treatment
    Aluminum
  • Surface Treatment Specification
    Bms 10-85 ty1 national specification single treatment response
  • Thread Series Designator
    Unjf
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Close Tolerance Bolt

An externally threaded fastener whose unthreaded portion is of a specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten-thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see bolt, shear. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see bolt, machine.

Mechanic Bill explains Close Tolerance Hex Head Bolt

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NSN 5306013386794

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
BACB30NR4K11 Boeing Defence Australia Ltd
BACB30NR4K11 Boeing Defence Australia Ltd
BACB30NR4K11 Valley-todeco, Inc.
BACB30NR4K11 Sps Technologies, Llc
BACB30NR4K11 Sps Technologies, Llc
BACB30NR4K11 Sps Technologies, Llc
BACB30NR4K11 Hi-shear Corporation
BACB30NR4K11 Textron Fastening Systems
BACB30NR4K11 The Boeing Company
BACB30NR4K11 Arconic Global Fasteners & Rings,
BACB30NR4K11 Lisi Aerospace Canada Corp
BACB30NR4K11 Alcoa Global Fasteners, Inc.
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